let ``No.201 yukicoderじゃんけん``() =

  let sa, pa, xa =
    stdin.ReadLine().Split(' ') |> fun args -> args.[0], args.[1], args.[2]

  let sb, pb, xb =
    stdin.ReadLine().Split(' ') |> fun args -> args.[0], args.[1], args.[2]

  match pa , pb with
  | a , b  when a > b -> sa
  | a , b  when a = b -> "-1"
  | a , b  when  a < b -> sb
  |> stdout.WriteLine
  

  ()
``No.201 yukicoderじゃんけん``()